mirror of
https://github.com/vgmstream/vgmstream.git
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264 lines
8.8 KiB
C
264 lines
8.8 KiB
C
#include "meta.h"
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#include "../coding/coding.h"
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#include "../util/chunks.h"
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/* BKHD - Wwise soundbank container */
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VGMSTREAM* init_vgmstream_bkhd(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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STREAMFILE* temp_sf = NULL;
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uint32_t subfile_offset, subfile_size, base_offset = 0;
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uint32_t subfile_id;
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int big_endian, version, is_dummy = 0, is_wmid = 0;
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uint32_t (*read_u32)(off_t,STREAMFILE*);
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float (*read_f32)(off_t,STREAMFILE*);
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int total_subsongs, target_subsong = sf->stream_index;
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int prefetch = 0;
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/* checks */
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if (!check_extensions(sf,"bnk"))
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goto fail;
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if (is_id32be(0x00, sf, "AKBK")) /* [Shadowrun (X360)] */
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base_offset = 0x0c;
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if (!is_id32be(base_offset + 0x00, sf, "BKHD"))
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goto fail;
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big_endian = guess_endianness32bit(base_offset + 0x04, sf);
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read_u32 = big_endian ? read_u32be : read_u32le;
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read_f32 = big_endian ? read_f32be : read_f32le;
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/* Wwise banks have event/track/sequence/etc info in the HIRC chunk, as well
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* as other chunks, and may have a DATA/DIDX index to memory .wem in DATA.
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* We support the internal .wem mainly for quick tests, as the HIRC is
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* complex and better handled with TXTP (some info from Nicknine's script).
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* Use this to explore HIRC and covert to .txtp: https://github.com/bnnm/wwiser */
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version = read_u32(base_offset + 0x08, sf);
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if (version == 0 || version == 1) { /* early games */
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version = read_u32(base_offset + 0x10, sf);
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}
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/* first chunk also follows standard chunk sizes unlike RIFF */
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if (version <= 26) {
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off_t data_offset_off;
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uint32_t data_offset, data_start, offset;
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if (!find_chunk(sf, 0x44415441, base_offset, 0, &data_offset_off, NULL, big_endian, 0)) /* "DATA" */
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goto fail;
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data_offset = data_offset_off;
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/* index:
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* 00: entries
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* 04: null
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* 08: entries size
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* 0c: padding size after entries
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* 10: data size
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* 14: size? or null
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* 18: data start
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* 1c: data size
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* per entry:
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* 00: always -1
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* 04: always 0
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* 08: index number or -1
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* 0c: 5 or -1?
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* 0c: 5 or -1?
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* 0c: 5 or -1?
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* 10: stream offset (from data start) or -1 if none
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* 14: stream size or 0 if none
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*/
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total_subsongs = read_u32(data_offset + 0x00, sf);
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if (target_subsong == 0) target_subsong = 1;
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if (target_subsong < 0 || target_subsong > total_subsongs || total_subsongs < 1) goto fail;
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data_start = read_u32(data_offset + 0x18, sf);
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offset = data_offset + 0x20 + (target_subsong - 1) * 0x18;
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subfile_id = read_u32(offset + 0x08, sf);
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subfile_offset = read_u32(offset + 0x10, sf) + data_offset + 0x20 + data_start;
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subfile_size = read_u32(offset + 0x14, sf);
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}
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else {
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enum {
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CHUNK_DIDX = 0x44494458, /* "DIDX" */
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CHUNK_DATA = 0x44415441, /* "DATA" */
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};
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uint32_t didx_offset = 0, data_offset = 0, didx_size = 0, offset;
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chunk_t rc = {0};
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rc.be_size = big_endian;
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rc.current = 0x00;
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while (next_chunk(&rc, sf)) {
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switch(rc.type) {
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case CHUNK_DIDX:
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didx_offset = rc.offset;
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didx_size = rc.size;
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break;
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case CHUNK_DATA:
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data_offset = rc.offset;
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break;
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default:
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break;
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}
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}
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if (!didx_offset || !data_offset)
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goto fail;
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total_subsongs = didx_size / 0x0c;
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if (total_subsongs < 1) {
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vgm_logi("BKHD: bank has no subsongs (ignore)\n");
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goto fail;
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}
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if (target_subsong == 0) target_subsong = 1;
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if (target_subsong > total_subsongs) goto fail;
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offset = didx_offset + (target_subsong - 1) * 0x0c;
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subfile_id = read_u32(offset + 0x00, sf);
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subfile_offset = read_u32(offset + 0x04, sf) + data_offset;
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subfile_size = read_u32(offset + 0x08, sf);
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}
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//;VGM_LOG("BKHD: %x, %x\n", subfile_offset, subfile_size);
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/* detect format */
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if (subfile_offset <= 0 || subfile_size <= 0) {
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is_dummy = 1;
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/* rarely some indexes don't have data (early bnk)
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* for now leave a dummy song for easier .bnk index-to-subsong mapping */
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vgmstream = init_vgmstream_silence(0, 0, 0);
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if (!vgmstream) goto fail;
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}
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else {
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/* could pass .wem extension but few files need memory .wem detection */
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temp_sf = setup_subfile_streamfile(sf, subfile_offset, subfile_size, NULL);
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if (!temp_sf) goto fail;
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/* read using temp_sf in case of >2GB .bnk */
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if (is_id32be(0x00, temp_sf, "RIFF") || is_id32be(0x00, temp_sf, "RIFX")) {
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vgmstream = init_vgmstream_wwise_bnk(temp_sf, &prefetch);
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if (!vgmstream) goto fail;
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}
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else if (read_f32(subfile_offset + 0x02, temp_sf) >= 30.0 &&
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read_f32(subfile_offset + 0x02, temp_sf) <= 250.0) {
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is_wmid = 1;
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/* ignore Wwise's custom .wmid (similar to a regular midi but with simplified
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* chunks and custom fields: 0x00=MThd's division, 0x02: bpm (new), etc) */
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vgmstream = init_vgmstream_silence(0, 0, 0);
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if (!vgmstream) goto fail;
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}
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else {
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/* may fail if not an actual wfx */
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vgmstream = init_vgmstream_bkhd_fx(temp_sf);
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if (!vgmstream) goto fail;
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}
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}
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vgmstream->num_streams = total_subsongs;
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{
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const char* info = NULL;
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if (is_dummy)
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info = "dummy";
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else if (is_wmid)
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info = "wmid";
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/* old Wwise shows index or (more often) -1, unify to index*/
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if (subfile_id == 0xFFFFFFFF)
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subfile_id = target_subsong - 1;
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if (info)
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snprintf(vgmstream->stream_name, STREAM_NAME_SIZE, "%u/%s", subfile_id, info);
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else
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snprintf(vgmstream->stream_name, STREAM_NAME_SIZE, "%u", subfile_id);
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if (prefetch)
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concatn(STREAM_NAME_SIZE, vgmstream->stream_name, " [pre]");
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}
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close_streamfile(temp_sf);
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return vgmstream;
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fail:
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close_streamfile(temp_sf);
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close_vgmstream(vgmstream);
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return NULL;
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}
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/* BKHD mini format, for FX plugins [Borderlands 2 (X360), Warhammer 40000 (PC)] */
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VGMSTREAM* init_vgmstream_bkhd_fx(STREAMFILE* sf) {
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VGMSTREAM* vgmstream = NULL;
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uint32_t start_offset, data_size;
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int big_endian, loop_flag, channels, sample_rate, entries;
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uint32_t (*read_u32)(off_t,STREAMFILE*);
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/* checks */
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/* .wem: used when (rarely) external */
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if (!check_extensions(sf,"wem,bnk"))
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goto fail;
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big_endian = guess_endianness32bit(0x00, sf);
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read_u32 = big_endian ? read_u32be : read_u32le;
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/* Not an actual stream but typically convolution reverb models and other FX plugin helpers.
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* Useless but to avoid "subsong not playing" complaints. */
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if (read_u32(0x00, sf) == 0x0400 &&
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read_u32(0x04, sf) == 0x0800) {
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sample_rate = read_u32(0x08, sf);
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channels = read_u32(0x0c, sf) & 0xFF; /* 0x31 at 0x0d in PC, field is 32b vs X360 */
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/* 0x10: some id or small size? (related to entries?) */
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/* 0x14/18: some float? */
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entries = read_u32(0x1c, sf);
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/* 0x20 data size / 0x10 */
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/* 0x24 usually 4, sometimes higher values? */
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/* 0x30: unknown table of 16b that goes up and down, or is fixed */
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start_offset = 0x30 + align_size_to_block(entries * 0x02, 0x10);
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data_size = get_streamfile_size(sf) - start_offset;
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}
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else if (read_u32be(0x04, sf) == 0x00004844 && /* floats actually? */
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read_u32be(0x08, sf) == 0x0000FA45 &&
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read_u32be(0x1c, sf) == 0x80000000) {
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/* seen in Crucible banks */
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sample_rate = 48000; /* meh */
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channels = 1;
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start_offset = 0;
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data_size = get_streamfile_size(sf);
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big_endian = 0;
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}
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else {
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goto fail;
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}
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loop_flag = 0;
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/* data seems divided in chunks of 0x2000 */
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/* build the VGMSTREAM */
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vgmstream = allocate_vgmstream(channels, loop_flag);
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if (!vgmstream) goto fail;
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vgmstream->meta_type = meta_WWISE_FX;
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vgmstream->sample_rate = sample_rate;
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vgmstream->coding_type = coding_PCMFLOAT;
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vgmstream->layout_type = layout_interleave;
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vgmstream->codec_endian = big_endian;
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vgmstream->interleave_block_size = 0x4;
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vgmstream->num_samples = pcm_bytes_to_samples(data_size, channels, 32);
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if (!vgmstream_open_stream(vgmstream, sf, start_offset))
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goto fail;
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return vgmstream;
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fail:
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close_vgmstream(vgmstream);
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return NULL;
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}
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